Arsene Wenger admits he doesn’t know when Santi Cazorla will make his Arsenal return

Arsene Wenger admits he has no idea when Santi Cazorla will return from injury after the Spanish midfielder missed Arsenal’s 0-0 draw with Middlesbrough.

The 31-year-old picked up an Achilles injury during the Gunners’ 6-0 thumping of Ludogorets on Wednesday and was sorely missed in the centre of midfield as Arsenal dropped two points against Aitor Karanka’s side.